package com.dq.usercenter.mapper;

import com.dq.usercenter.entity.UcenterMember;
import com.baomidou.mybatisplus.core.mapper.BaseMapper;
import org.apache.ibatis.annotations.Mapper;

/**
 * 会员表(UcenterMember)表数据库访问层
 *
 * @author Dq
 * @since 2022-08-07 17:18:41
 */
@Mapper
public interface UcenterMemberMapper extends BaseMapper<UcenterMember> {


    /**
     * 查询一天的总注册认识
     * @param day
     * @return
     */
    Integer findTotalRegisterCountFromOneDay(String day);
}